QuakeIndex

explosion · reviewed by a seismologist

M 1.8ml

Oregon

· -1.7 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jackson County 16 kmJosephine County 75 kmKlamath County 86 kmDouglas County 90 kmSiskiyou County 108 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.8 (ml)
Depth
-1.7 km below the surface
Felt
no reports yet
Nearest
Jackson County, 16 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1257 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as explosion, not an earthquake.

How big was it?

This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 42.5528, -122.6800. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jackson County, OR 16 km (10 mi) N of here earthquakes near Jackson County
Josephine County, OR 75 km (47 mi) ENE of here earthquakes near Josephine County
Klamath County, OR 86 km (53 mi) W of here earthquakes near Klamath County
Douglas County, OR 90 km (56 mi) SSE of here earthquakes near Douglas County
Siskiyou County, CA 108 km (67 mi) N of here earthquakes near Siskiyou County
Coos County, OR 135 km (84 mi) ESE of here earthquakes near Coos County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

35 earthquakes have been recorded within 50 km since this one.

  1. 0.9 15 km NE of Wimer, Oregon
  2. 1.9 6 km NE of Medford, Oregon
  3. 1.6 8 km WSW of Phoenix, Oregon
  4. 1.8 7 km SSE of White City, Oregon
  5. 1.5 7 km SSE of Jacksonville, Oregon
  6. 1.6 24 km N of Trail, Oregon
  7. 1.6 6 km W of Central Point, Oregon
  8. 1.6 16 km NNE of Wimer, Oregon
  9. 1.6 7 km WNW of Butte Falls, Oregon
  10. 1.5 9 km WSW of Phoenix, Oregon
  11. 1.8 6 km ENE of Medford, Oregon
  12. 1.8 4 km SE of Eagle Point, Oregon
  13. 1.7 21 km E of Days Creek, Oregon
  14. 1.9 8 km SSE of Jacksonville, Oregon
  15. 1.6 9 km SSE of Jacksonville, Oregon

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.